Music is your friend.

1. Aaron Gillespie of Underoath plays an acoustic version of their song "Reinventing Yout Exit" (Which is a very unacoustic song).

2. Thrice plays an acoustic version of their songs "All That's Left" (original version here) and "Under A Killing Moon" (original version here) - both loud, crazy songs in their original forms.

3. The weird but cool (to me, at least) mewithoutYou playing "Leaf" live. I love these lyrics from the song:

Oh, to want one thing!
Purity of heart is to want one thing.

4. And finally, because of a concert being postponed, members of Brand New, Thrice and mewithoutYou came out and played Christmas carols for the people waiting outside. Cool.